Might as well add mine to the list, 511869, Pete Hewetson

EDIT: And 511290

Wow, don't think I've seen three of the early gray-body grouped-slider machines for sale all at once on Ebay, ever. Bid away, gents...

aaaand here we have for sale http://www.ebay.com/itm/early-CURTA-Type-II-Calculator-rare-interim-model-/190689980966?pt=UK_Collectables_Scientific_MJ&hash=item2c66023226#ht_7428wt_1263 number 511904 (internal SN matches base plate) with the later, alternating, slider arrangement. I'm beginning to think there was a period of weeks during which the workers changed over and we will see more of these 'seemingly out of sequence' machines.

Are there ever made two identical Curtas ?



... and congratulation for your 2nd (?) Bernerin!

Thanks murff. You're right, all of mine are slightly different...