Some thoughts on the scarce 20th century items from the sale: there wre 5 of 9 rare stock transfers so lets look at them; RD 139 5.5K same as when it sold in Cunliffe RD 185C 32.5K for PI an uncut example when for 25K in Buford RD 208A 19.0K a different PI example was 20K in Buford RD 232 13.0 K owner paid 10K in Harmer sale RD 234 19.0 K came from Ballman sale 9.0 K
The provisional narcotic tax are a bit harder to track then the silver tax stamps. But I went and looked at the RG 32 80c provisional silver tax stamp. The last time this copy sold was back in 1991 in the Joyce sale for $1900 when it catlogued $1000. and the tip - I buyers commission was only 10%, not the current 18%.