I have a ton of precancels that look like the one below and which I have always assumed are the dirt-cheap Type 230.

Now I am organizing Philly, I measured one of my stamps against the catalog image and found that the stamps I own have lines that are way closer together than 230.
The nearest I can find to match my stamps is L-46 HS. But that is 75c per stamp so it seems very unlikely that my tens or a hundred stamps are actually that type.
Is the catalog misprinted for Type 230? Or what am I doing wrong?

PS Now I look at them again, I see that L-46 HS is block letters and Type 230 is serifed. And mine are serifed. So that puts me back to they must be 230, but somehow the lines are narrower than shown in the book? Thanks.
Here's the stamp and the catalog image, for those not familiar:
