GFS XCH G saddles

I’ve got an XCH but unsure what model. All I know it it’s an odd shape but fits me be my girl beautifully. I need a 17.5 for my legs but she needs something with short panels as she is short coupled. This is a 17.5 but sort of sweeps upwards so isn’t too long for her but suits me too. The saddle fitter had it in the shop for ages as didn’t fit anything.
 
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