The widely known and highly regarded frame pump by Silca. Came in a wide range of colors, for many many years. This one is topped by a pump head made by Campagnolo.
The pump pictured is the non-frame fit variation. It was used with a pump clip, like the Campy Umbrella pump clip. There was a later frame-fit variation with a concave handle end that was sprung to hold itself under the bottom of the top tube. It required no pump clip. Both varieties came in an assortment of lengths.