There have been sights on hunting recurves all throughout it's history. It just more associated with Target- fita archery. Check out 3riversarchery.com for different sights. Those folks are some of the most knowledgeable people in the industry. They sell parts for drilling and tapping your bow to accept screw in sights or accessories or they might sell a stick on sight. Use caution though. If your interested in a competing with that bow. some Outfits don't allow sights or sight holes, or even marks of any kind as a sight reference.
ASAT CAMO RYTERA NEMESIS. MARTIN SCEPTER V. SON'S BOW - MARTIN BENGAL PRO.
BROWNING COBRA RECURVE. SAMICK SLB LONGBOW. PSE BRUTE. PSE PACER. PSE PHASER-FLITE