This is an Esterbrook M2 aerometric squeeze filler fountain pen in black c. 1960. Â It is a 5 5/16 inch long chrome plated metal cap and plastic barrel pen. Â The cap top has an indent running front to back, like the indent in a man's hat. Â The filler unit is similar to later Parker types, a long sac protector with a looped squeeze bar at the end. Â The filler is marked ESTERBROOK over PRESS BAR 3 TIMES over TO FLUSH AND FILL. Â The barrel has an Esterbrook imprint. Â It uses all of the 32 different available Esterbrook Renew Point replaceable stainless steel nib units. Â Known colors include: black, red, olive green, turquoise, blue, and gray. Â It sold for $2.95 with a Durachrome nib and $3.50 with a Master nib. Â Â











