After reading about the 6SN7 posts I just had to try, very nice tubes not my cup O tea:

6N8M/6SN7 Metal Base, 1951 Vintage.  Shiny Black T Plates (no holes).  these were sold to me as used with readings of 9.1-2.55 & 9.9-2.60: $40.00

CV1988/6SN7 KB/FB Brimar Military tube 1955 Vintage. D Getter, staggered flattened oval grey plates. Footscray Factory.  Sold as open box with test readings of 3200/3200: $100.00

Buyer pays shipping and pay pal fees.