Here's a version of nearly identical size with fewer artifacts compared to the largest version, but the color is washed out: https://i.lensdump.com/i/W13t2i.jpg
And a smaller version with virtually no artifacts: https://i.lensdump.com/i/W131Co.png

Here's a couple of attempts at enlarging some scans in Waifu2x- the best outcome is the first, but the colors are pretty off: https://i.lensdump.com/i/W13jfK.png
https://i.lensdump.com/i/W13I0Z.png

Here's the original of the first Waifu2x resize: https://i.lensdump.com/i/W13iKc.jpg
And here is a mostly complete digital version: https://i.lensdump.com/i/W13gYm.jpg

Here is that same digital version (but with a slightly different color): https://files.catbox.moe/d4b5bb.jpg
The above version with the bottom text removed: https://files.catbox.moe/gxpe63.jpg
And this version upscaled in Waifu2x: https://files.catbox.moe/9gzbjn.png