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I’ve seen drawings and sketches of Victorian-age devices designed to curb masturbation. Here is one…
The band at the top fits around the waist. The trunk-like sheath in front envelopes the penis and draws it down. This "trunk" is in two parts, the top piece is what envelopes the penis, while the bottom part is a reservoir to hold urine. The two smaller loops attached to the reservoir buckle around the thighs, forcing the sheath to stay down.
