Jamestown Westie with Original Tall White Ripley PC

I love those tall white Ripleys! And I like OV-15s too! I can only imagine how dim this lamp is if it's 100W, which I'm guessing it is. The 175W MV lamps from the 60s hardly dim out at all over the years but the 100W mercs always dim down to nothing, even the lifeguard/bonusline/banner lamps. Not sure about 250 and 400W mercs. Seems like the 175W lamps from the 60s lasted longer than anything else.