Do you buy 78's?

I wouldn't donate too quickly if the 78s are in somewhat good condition. Many 78s had flipsides that are rare & have not made it to any compilations/collections. Recording Masters in that era were fragile, ill-kept, & many had been misplaced, destroyed or not kept in a safe environment. If a record company or collector is looking for those 78s to gain the rare flipside song -- that's where you could possibly make some money. If you are patient, or care.

We do not buy or sell 78 rpm records.

They'll take them, but take the advice of John.

I doubt it, I've never seen 78s there. Probably better trying to sell em on Ebay or just donate em