Vintage Robertshaw Valve Sizing Coefficients Slide Rule Calculator 1961
Vintage Robertshaw Valve Sizing Coefficients Slide Rule Calculator 1961.PLEASE NOTE: The item you see is the EXACT item you are receiving. If you have any questions about any of the images, PLEASE feel no-cost to contact us.We are not experts, but we earnestly check out to describe the item accurately. We will not guarantee our items come from a smoke-free or pet-friendly environment. We purchase from many different sources.p2paam