Thanks;

Pretty near kin! Yours is 375 numerals lower than my 2-inch. Wonder if they stayed up late talking and giggling after the light was turned off.

My other 4-inch with the ramp sight is 322XXX. I already forgot the rest of the digits though I just got it out to look at it. Looks like the switch-over to ramp from the half-moon occurred sometime during the low C 300000 range.