I don`t remember when I bought mine, at least 20 years ago +. has the long pump lever and added an 18" hose. Works every time I use it, only problem I need to replace the end that goes in the Zerk, worn out and hard to get on some times.
I just buy the grease tubes to refill it, but if the end gets dented, it won`t seal when it is screwed together.
When I was working we had grease in 5 gal buckets. It sat on a 4 wheeled dolly that the top piece sat on the bucket with the long suction tube. Then add air to pump the grease to lube the Graders, Back Hoes and Trucks etc...
To fill the Grease Guns, there was a zerk on the top of the Gun to fill it. Or unscrew the Gun, stick the end into the Bucket and pull back on the end lever and suck it full of grease.
This was before we ever had the Grease Tubes.
I don`t need anything too fancy to grease the few zerks on the 86 or the Kioti or JD Tractor.
Goat