Thanks to Warren/ I ordered two books from Tauler & Fau. One is from Medieval period 1018-1516 Every coin is illustrated in colour/ even the AV 50 Enriques 230g. 98mm. One beautifull coin. Fair chunk of change in 1471. This was struck at Segovia Mint/ for King Enrique IV.
I wonder if the 50 Enriques ever appeared in auctions. I can imagine what it would go for....50 M? I would say it would be a steal, when the 33 Double Eagle 15 known sold for 18M.