Having been a UN AD back then, the RG, YG & WG versions, were made in 150pc editions with enamel dials/no date. The RG edition of 150pcs, however was added to by Rolf, who decided to make a few more for his friends...how many we may never know! The plot thickens as I bought the #3 in platinum, a tiny series of three, originally for a U.K. retailer. I'm sure the present company prefers that number of extra RG pieces to stay with Rolf, as it somewhat dilutes the reality of the 150th Anniversary Edition. After I sold the platinum piece, which I still regret somewhat to this day, I ended up doing a trade with a friend in 2005 or 2006, and secured a RG Enamel Dial 150th Anniversary piece. However, it didn't have the typical serial number as the other RG. YG or WG pieces I'd seen, No.12/150 and instead, just has No. 12. Upon inquiring with Patrick Hoffman, the Head of Sales back then, why the mysterious number, he revealed this "addition to the series" made by Rolf. The solid case back on my watch has the standard 150th Anniversary markings, just the Serial number isn't part of the original stated series. I'm thrilled I was able to get this piece and the story around it's genesis is fascinating. I suspect not all that unusual back in the day. In today's super connected world, that type of behaviour would be found out rather quickly, and the offending brand called out... Cheers, Tim
Great to hear about the extra RG pieces. I have seen pieces with this different numbering but not realised it was in addition to the original run (I still believe the original run was 250 - Perpetual Ludwig was 150 pieces) - I have seen a piece numbered 30 as you describe.
Interestingly I have some UN brochures for the Marine Chronometer with the total shown as 900 (300 each model) which then has a sticker over the number changing it to 750 - I guess originally they were making 300 of each.