11/38 Mulching?

Hello, everyone. I've been thinking of trying to mulch with my old 11hp 'cube' it's the silver deck with skids instead of wheels, model number 917.255732. I've seen baggers few and far between, did a mulching feature even exist? Doesn't seem like it'd be the best mulch deck, but it would work I think. Did such a setup exist? If not, I figure Gator blades must fit it somehow?

Thanks, all.