Two Schicks arrived in the mail

[MaineYooper]

Here is the Type G with the amber handle

   
   

There was no blade loaded. When I added a Ted Pella, it went in with no effort. This is alarming to my injector knowledge. Shouldn't it have been difficult to put in a blade in an empty injector? It seems secure, but I am worried about shaving with it. Can it be tightened? Maybe I need to correspond with the seller and see if he forced the blade out without using a key. 

Any tips or stories regarding similar situations that may have been encountered would be appreciated. 

Thanks folks!