Sperry Gyroscope Venturi

During my latest identification session of a large amount of Hamilcar / Horsa remains, I came across what was obviously part of the support for a Sperry Gyroscope Venturi. Whilst I’m sure its from one that drove the gyro instruments on a Horsa I’d like to rule out the larger ones from the Hamilcar. To this end I need a list of the types / sizes or venturi made by Sperry, does anyone have such a thing?