Thank you Mike,

The lifting blocks are made by Garhauermarine and have a 1/5 gain with locking cams and are lifted by hand.

https://www.garhauermarine.com/shop/transom-hardware-accessories-mast-boom-blocks-hardware/dinghy-davits-accessories/dinghy-davit-block-and-tackle-system-port-dd-bt-port-copy/

Jose Venegas
Ipanema SM2K N 278
Currently in Club de Pesca, Cartagena