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About colonialjohn

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  • Birthday 09/23/1954

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    United States
  • Interests
    Contemporary Counterfeits - all periods - all nations

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  1. See my weekly GENUINE contemporary circulating counterfeits from my upcoming book via Amazon Books "Forgotten Coins." EBAY Seller: johnmenc John Lorenzo United States
  2. Kal - I should have you as an editor to review my English CCCs for my upcoming book "Forgotten Coins". It looks modern to me or something made later outside the regal mint. Its TOO PERFECT? However, I have never seen this form of a Contemporary Circulating Counterfeit. Debased silver with copper - does not appear to be silvered ... INTERESTING. John Lorenzo Numismatist United States
  3. colonialjohn

    Ed Penny, contemporary forgery???

    I cover some of these in my upcoming book "Forgotten Coins." Look at the "R" I see som surface peeling and what is the weight to regal. A picture is generally not enough to confirm silver silvering over a copper core. See Amazon Books in about a month. John Lorenzo Numismatist United States
  4. Have a nice grouping this Sunday night on EBAY. Seller: johnmenc All at a $9.99 start. U.K., German States, Spanish/American, Spain, etc. My new book "Forgotten Coins" via Amazon Books with over 1,000 counterfeits of the period (i.e., not Modern Chinese Forgeries) will be out very soon. Probably first week of December 2017. John Lorenzo Numismatist United States
  5. colonialjohn

    Using acetone to clean coins

    These coins show nice original patina. No need to clean. Cleaning is normally use to remove green oxidation off of copper alloy coins. When you sell coin experts (for lack of a better term) can spot brushed coins. Coin cleaning on these low grade coins can also create a situation where you are just brushing dirt particles in/around the surface of the coin creating hairlines. Leave it alone ... John Lorenzo Numismatist United States
  6. colonialjohn

    Using acetone to clean coins

    A good U.S. reference I use on a frequent basis when someone in the U.S. is interested since you are from Indianapolis, Indiana is Julia Purdy who is Chullie which is her E-Bay ID. As you may know she sells a lot of low end copper both U.S./U.K./World and enjoys the product but did state on that red or orange DEEP verdigris I guess John I was asking too much of your product. LOL. Yes you were ... Talk to her if you wish being from the U.S. on the product's pro's & con's. The product was made as strong as possible and yet not to impart any residue, no water rinsing necessary or IMPACT to the copper's cartwheel effect on UNC red copper coins - AT ALL ... so this is the comment I usually get relating to its limitation. But if the copper oxidation is not advanced and deep and is superficial ... then IMO its worth a try. Start with Red Lincoln Cents and work your way up ... and remember for large amounts of green verdigris use multiple cleaning Q-Tips (I recommend Johnson & Johnson Safety Swabs for infants) to avoid imparting surface hairlines under a jewelers loop. If you actually tried the product thanks for your faith in me and hope it solves some of your cleaning woes with copper. JPL
  7. colonialjohn

    Using acetone to clean coins

    ... which is why I sent a FREE bottle to Paulis ... a noted top numismatist in the U.K. and on this forum channel and in this post thread. He is my U.K. reference point ... consult with him first privately ... then decide. I have cleaned >$1,000 U.S. copper coins with my product. I understand your FEAR and HESITATION and DOUBT. $45 is a lot ... but if you have that medal or coin and feel this product is worth a gamble ... I invented this product indirectly through company knowledge and for my own needs. I have only sold around 40 bottles. JPL
  8. colonialjohn

    Using acetone to clean coins

    Verdi-Care is just a protectorant. A type of oxidation preventative type sealant product with minimal cleaning capabilities. Its useful therefore in a post-cleaning operation to prevent further oxidation build-up due to chlorine and sulfur intrusion ... JPL
  9. colonialjohn

    Using acetone to clean coins

    Although I have all the prerequisites IMO such as a M.S. Chemistry, 15 years+ in industrial cleaners with some product development, 40 years in Numismatics and a world authority on U.S. Colonials - particularly in copper coinage (i.e., New Jersey Coppers), etc. ... I agree ... its a waste of time in this debate with 99.99% of collectors but I interject occasionally for my own amusement. Be that as it may ... However, knowing the sensitivity of copper and knowing the general make-up of the best copper cleaner ever invented (i.e, original Coin Care and its secret ingredient Freon TF) I have surpassed this mixture (I believe) with my new product. I sent a bottle FREE to Paulus ... however ... I believe what happens is due to the sensitivity of copper the product if you will has to have a neutral pH (i.e., 7.0) and its a solvent emulsion type cleaner which of course by its nature is superior to any raw solvent like xylol, olive oil (yes - crude mixture) and acetone and other stand alone solvents. I currently work in the Military business and recently Freon TF (December, 2013) was banned by the USEPA for the remaining few businesses which were allowed to use it - it was banned 20 years ago for U.S. non-industrial manufacturing consumers due of course of Freon TF to its ozone effect in the atmosphere. We (current company) needed to come up with a substitute MIXTURE to effectively clean soft metal alloy parts similar in capability to Freon TF for military aircraft. So what most persons using my product have said it works great but I wish it was stronger. But you see the issue - it was made strong enough as not to damage the cartwheel effect on a choice UNC copper alloy coin hence its great ability on superficial green oxides on all metals including sensitive copper. I do understand one needs to be careful in moving soils around on the surface of the coin - I do understand that most people will not appreciate the limitations of a product strictly made for a copper surface - so I really advertise this or give this to seasoned collectors who want to gamble. Hence my $25/bottle tag. My product has passed PCGS/NGC inspection so to speak ... Talk to Paulis ... JPL
  10. colonialjohn

    Using acetone to clean coins

    There is no greater debate in numismatics ... to clean or not to clean ... and if so ... how Forum God. LOL
  11. colonialjohn

    Using acetone to clean coins

    ooopppss ... message was for PWA 1967. PWA 1967 talk to Coinery if you like it ... remember its geared primarily for copper based alloys. Would not send it to UK at this price if it was not something VERY DIFFERENT. Good luck if you proceed. JPL
  12. colonialjohn

    Using acetone to clean coins

    OK. Coinery. Its $45 which covers the approximate $20 P&H of the small box. You can E-Mail me with questions. Talk to your UK buddy in this thread who received a free bottle. Works PERFECTLY on superficial green oxidation and was designed for sensitive copper substrates. No impact to the cartwheel effect on Proofs or UNCs. The only color change you will see is on patina removal so use only to remove oxides. Has the same make-up as the old U.S. Coin Care which was banned 15-20 years ago. Yes - that's me giving the BM my latest book on contemporary circulating counterfeit EIGHT REALES to the left (i.e., picture profile). So what! - Can you make the ultimate copper cleaner? You are doubting John Lorenzo? Good luck with it ... remember careful on moving soil particles around and use only when necessary (i.e., to remove green oxides). Not designed for heavier deeper copper oxides since its substrate safe. Works INCREDIBLE on 19thC copper or bronze medals. John Lorenzo Numismatist United States johnmenc@optonline.net PayPal: johnmenc@optonline.net (same as my E-Mail). JPL
  13. colonialjohn

    Using acetone to clean coins

    Just checked by PayPal history and no record was found. johnmenc@optonline.net check this E-Mail carefully and your own PayPal history. JPL
  14. Money was sent via pay pal 22nd december.

    Same address you gave me......




    1. colonialjohn


      Let me have your E-Mail via PayPal and I will send an invoice its $45 U.S. due to $20 for P&H.


      John Lorenzo

      United States


  15. colonialjohn

    Using acetone to clean coins

    I put in some recommendations. It has a strong non-hazardous orange odor so discard all cleaning tissues and the like after cleaning your coins. Best on green light verdigris. Confirm it has no effect on the cartwheel effect for Mint State Coins. Be negative - but realize it was strictly made for copper alloys as to not change any differences to the surface. No one has disagreed that after cleaning the coin it passes the people at the slab companies (NGC,PCGS,ANACS). Realize to use many Q-tips and such as not to create hairline scratches. I find this cleaner valuable therefore on circulation type coins whether $1 or $10,000 IMO. If you own a 19thC bronze medal try it on this type of issue and be astonished! LOL. BTW - the picture in my profile was when I visited the BM in 2013 and presented the BM my book I did with Robert Gurney on the Spanish/American Counterfeit 8 Reales currently being sold on Amazon Books both in the U.S. and U.K..