Don't be silly Gary. These are obviously one for each arm pit. For my silky smooth legs it's a long handle Lady Eversharp all the way.
When the New improved was introduced all earlier razors became "old type", but not all were advertised as such. "Genuine" remained a more common term for old type sets. After the New appeared in 1929, both the "original" and New improved became "old type", as these used three holed blades instead of the long slot "New" blade. During this period mostly ball end old type variants (102a) were sold, but not as old type sets. The three hole blade also became old blade when the New blade was introduced. Adam