I'm guessing that this set of Speedball Calligraphy nibs date to the 1950s. I'm not sure though because I purchased them at an estate sale along with several other brands and partial sets. (See my other listings for the additional sets).
There are 6 nibs. The nibs are still attached to their original store display card. On the card, and under each nib, it shows what type of line that particular nib will make.
The printing on the front of the card reads:
THE COMPLETE ASSORTMENT OF SPEEDBALL PENS
STYLE 'A" SQUARE TIPS for Square Gothic and Block Letters
STYLE 'B" ROUND TIPS for Round Gothics or Uniform Lines
THE LITTLE WIZARDS OF ARTCRAFT
TRIPLE RESERVOIR PENS
A POINT FOR EVERY DRAWING AND LETTERING USE
(the only pens with a distributing reservoir over marking tip)
STYLE 'C" OBLONG TIPS for Roman, Text and Shaded Italics
STYLE 'D" OVAL TIPS for Bold Roman, Texts, Italics, Etc.
The back of the card has the 8 steps for holding and using the nibs, as well as advertisements for Speedball inks.
I see no evidence that any of them were used in the past.
Buyer to pay USPS First Class Mail Parcel mail charges of $3.99. Shipping is from Arizona.
INTERNATIONAL SHIPPING depends on the country. Buyer must contact seller for shipping quote before making purchase. Seller reserves the right to void any transactions where contact has not been made prior to purchasing.
To avoid excess shipping charges, please contact seller for combined shipping charges if multiple purchases are desired.
Items in my listings come from estate sales, garage sales, or various auctions. I do not know if they came from homes where smoking or pets were present. All items are sold in the same condition as when I received them.