Another CN member mentioned a site which was selling old University Optics 2" right-angled prism diagonals (1980's/'90s vintage) for $150. Link to vendor selling older UO 2" prism. Scroll down to "STAR DIAGONALS,2"/1.25"/.965",VISUAL BACKS,ADAPTERS,FOCUSERS". It's in that grouping.
That's probably the least expensive 2" star diagonal prism around these days.
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A few telescopes of dubious value.
Understanding wife, two curious cats and one sadly departed.