Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Vienna Crutch Plate by PERRIN Sale $4.50 | / SKU 76-476 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available Vienna Crutch Plate is a brass pendulum crutch plate for Vienna regulators.