Not sure, i found 4 on ebay with that feature so i doubt its a rarity. One appeared to be single action, two were listed as master or master mI wonder if it was an additional place for a gravity bottle....? Or maybe they had the wrong fitting. What sort of Wold is it and what year? I have some contact with the owner of Wold, I might be able to ask them.
Not sure, i found 4 on ebay with that feature so i doubt its a rarity. One appeared to be single action, two were listed as master or master mI wonder if it was an additional place for a gravity bottle....? Or maybe they had the wrong fitting. What sort of Wold is it and what year? I have some contact with the owner of Wold, I might be able to ask them.
I saw the note on another ebay one. Saying they couldnt include the steel case , desktop holder, the 2 piece air connector, and the extra needle cap. Neat in a historical sense.Oh, I should also note - the war models still came in a case. There was a cool note included in the case apologizing for the need to substitute some of the materials used in the construction of the brush. German silver was substituted for some of the brass parts, especially where they might wear, and a second air cap was omitted from the models that use them. Wold was the first brush that allowed for the removal of a needle cap, like that of modern day Iwata's and such, that would allow the user to get closer to the work surface for detail, by exposing the needle. Before the war, these brushes shipped with a one piece nozzle cap, with the two piece also included - many where held in a compartment hidden in the handle of the brush.
No, the mac valve goes into the air supply on an HP-TH, it would just blow bubbles in the cup.So, in theory, could an Iwata HP-TH also use the mac valve to convert it to siphon feed by blanking the color cup?
Nope, the MAC valve on the Iwata is part of the air circuit. The Air circuit on the Wold goes along the side of the brush...So, in theory, could an Iwata HP-TH also use the mac valve to convert it to siphon feed by blanking the color cup?