18TH/19TH C. SURVEYING PRINTS

Three early prints "Surveying" and "Projectile/Protractor", one dated 1816 - unframed; sheet sizes 26.7 x 20.3cm (10 1/2 x 8in), 31.8 x 24.1cm (12 1/2 x 9 1/2in) and 43.2 x 38.1cm (17 x 15in) - some folding; one with small tear