Hello.
I think the best thing is to give specific questions you want an answer for.
Let us know the drum sizes, color and condition and provide a picture for reference.
Personally I visit Ebay and check for completed items or current auctions to get a reference on value. This is just a reference and not a final basis. There is a blue set of Olympics on Ebay at the moment. and completed items on display that have sold in Ebay.
Olympic drums were the lower level Premier drums and usually priced accordinlgy in the catalogs.
I have catalogs at my disposal that picture sets from different years and also provide information about the drums, but I would need to narrow down the year by seeing pictures and getting more detail.
There are a few people that specifically collect Olympic drums because they can usually be found rather cheap or cheaper then other Premier drums.
Let me know and then I can get you that info.
David