Clipper I Floats
Float P/N same as my aircraft, stamped in same area so, assuming genuine, they are RHC Floats. Have photos of mine but still learning to post pictures on Pprune.
It looks like the ASI "80 kts VNE" Placard is incorrect, and the POH placard is correct.
You mention GW as 2500lbs on your paperwork, note a GW of the R44 Clipper I is 2400lbs, if you fly 2500lbs you are overweight - unless you are flying a R44 Clipper II?
Oil spots on floats - I get similar, but not as many as in your photo, it tends to be oil venting out of the breather, clean the oil off then see how quickly the spots reappear.