Hello Coinut,
I just checked the latest retail prices on
Coin World's Paper Value's Guide and found that the Series 1935-B $1 Silver Certificate list for $2.50 in Very Good condition and $25.00 in Choice Crisp Uncirculated condition (mid 60's grade)...
The Series 1935-C Silver Certificate $1 Note also list at $2.50 in very Good and only $18.00 in CH. CU condition...
When I sold my Currency Collection so I could focus on Error Coins & Currency, Dealers back than only offered 10% over face value for Silver Certificates, Legal Tender Notes (red seal)and older Federal Reserve notes in the 1928 and 1934 series...
I ended up spending the notes in circulation as I seen the excitement of people behind me in line wanting the notes (that they would have to receive from the cashier), for me, it was worth the 10% loss to pass these on to new collectors (the red seal notes seemed to be the favorite)...