Well done Hiawatha. I have it as a Fiat 615 Romanazzi used at Fiera/Mostra d'Oltremare. I have some doubt about the fact it actually is a 615 (the steering-wheels seems to be too forward for a 615), but also 1100 ELR doesn't fit (I suppose 1100 chassis is smaller). Could it be an OM Leoncino?
Anyway the point is yours as you gave the answer I was waiting for.