Siamese Pipe by HerShe typically asks about $9 on Music Merch Marketplace (M³), based on live listings from eBay, Discogs, and official stores. Condition, size, and signatures can move a single copy's value.
Music Merch Marketplace (M³) doesn't have enough live listings over time yet to say whether Siamese Pipe is going up or down in price.
Yes. Music Merch Marketplace (M³) classifies Siamese Pipe as officially licensed HerShe merch, based on its listings coming from a licensed label or vendor.