A few pictures and a clear one of the stamp would be helpful. While you seem to be on top of what you have, you might be surprised how often Old K stamps are misidentified. Drumaholic and Zenstat are the two people most likely to give you an accurate value for it in the current market.

No problem at all, hopefully these pics will be of sufficient quality. Apologies - it was identified as a IIIb...

Looks like a IIIb to me. Here's my analysis of pricing based on completed sales:

http://black.net.nz/old-k/old-k-prices.html#18

In my pricing work I group all Old Stamps together to get sample sizes which are larger and give more stable estimates. If you follow that link you will see that I divide the 18" cymbals up by weight and yours is in the under 1800g category:

Old Stamp: Expected median price $750 with half selling for between $500 and $900 n=24

More details on how condition influences estimated price, and a background to the boxplot graphics I use are found on the Avedis Zildjian page:

http://black.net.nz/avedis/avedis-prices.html

Yours looks to be in good to excellent condition. How prices vary between Europe (including the UK) versus the USA/Canada is a more complicated topic which I have done a little work in. But international economic comparisons are notoriously difficult. All the prices I give are in US Dollars and exclude shipping.

Thanks so much zenstat, that’s so helpful. Really appreciate it. There does seem to be a big difference between asking prices and actual sale prices. If I’m realistically looking at getting back an average of around the $750 mark I think I’ll hang on to it, as it does sound so good and is in such good condition. I already have two wonderful old snares and don’t really need to sell. If I was looking at closer to the $1k mark it might be a different story!

hello, the trend that I have seen lately that auctioned starting at $1 the final price goes up more than sold at a fixed price, moreover selling faster, a nice "rare" item auctioned no one will get it below cost

moreover starting sell at a very high price and then go down with the passing of the months, it creates a kind of antipathy towards that object, it becomes more and more hard and long time to sell