Mills arm mechanism help

[widget2k4]

I thought I had nothing better to do than fit the pump linkages to my 1930 Mills from another Mills machine but they do not fit.
Does anyone know what the linkage should look like for this machine? The holes are closer together and there is no hole under the mech tray like more modern Mills. I am a bit stumped with this.

[silverbitz]

Hi, What's the model?.

[widget2k4]

Roman Head mate.