Sterling Silver. These rowing blades measure 1.25" x 1/2" and have hinged backs.  They come in a matched pair: either both tulips or both hatchets. Tulip Blade, the classic style of rowing blade, is pictured on the left, and the newer hatchet style is on the right. 

Also available in different metals. Pleas call or email for pricing: 703-548-5509 [email protected]