Graaf input selector identification help

Trying to find a replacement input selector for a Graaf 13.5Bii looking at the Elma data chart for type 4 selectors I think it may be an Elma 04-1453. Shorting, single wafer, 4 pole, 5 input

The switch fitted looks to have input terminals in banks of 5 which appears to match the data sheet but images I found on line look to show 22/24 terminals. That is to say lugs between the banks of 5 which the fitted switch does not appear to have.

As the switch is soldered directly to the board I need an exact fit drop in replacement.

VGCs5hG.jpg


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anyone had experience of this amp/switch that can shed some light on the matter