Coin Grading Practice Site

Hey all,

I started working on a site as a side project to help myself get better at visually grading coins. Basically, it's the inverse of PCGS Photograde. Instead of showing a single coin as an example of a specific grade, you are presented a number of coins of a specific series and asked to provide grades. For coins that are professionally graded, we can immediately see how accurate a user's grade is. We can also see, on average, what a user of the site believes the grade to be (the "crowd grade"). The site serves a two-fold purpose: 1) allow people to practice visually grading coins and 2) with a decent sized user base, could allow users to get a ballpark grade estimate from the "crowd" for a coin they've uploaded.

I'm planning to add the ability to upload and import coins, as well as tag images with pickup points for varieties, damage, evidence of cleaning, etc.

The site currently free as it is still in beta testing. I need to implement a good deal of additional functionality (and bug fixes, no doubt).

Please feel free to sign up and try it out at -- I'd love any feedback with regards to whether or not this might be a fun/useful product, and what other features you might like to see.

 

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I like the site.

 

Thanks! Definitely need to add suffixes to the grading portion (BN/RB/RD, FBL, FS, etc) which will probably happen once I pull some additional coin series data.

I'll also be pulling some additional coin images soon to seed the site with more coins to grade.

 

The only problem I can forsee is the differences in the photographs will make inaccurate

 

Site won't let me sign up.

 

I signed up, but I can't login either.

 

Please make sure you've activated your account - you should have received an email with an activation link.

Good catch though, I'll add some better error messages in that case.

 

Images aren't all shot on the same camera, under the same conditions? That would be a....distraction.

The premise of the site completely agrees with where I feel numismatics should go - meaning I'm predisposed to have a favorable opinion - so hopefully any criticism I might offer will be taken as constructive. Lemme see what I can do.

 

I think the idea is great, especially if it's a free service.

 

Administrative comment: Upon successful registration, redirect the new member to a page informing them they have to await a confirmation email, not directly to the login page where their registration won't work.

 

Thanks. I was planning to leave the grading side free, and possibly go with a nominal monthly subscription ($10?) to be able to upload one's own coin images in the future, once things are a bit more polished. Or perhaps just sell upload credits on their own for a dollar or something. None of this is set in stone yet obviously.

I don't think it would be sustainable running it off AdSense revenue only, but perhaps once there are more users on that could be possible.

For perspective, my two not-heavily-traffic'd sites have earned a whopping $6.84 over the last 2-3 years. You've really got to have relatively high volume in order to even cover costs.

 

Already noted and will take care of. I'll also see if I can get my backlog of work publicly available so everyone can see what's in the pipeline.

 

The displayed images are too small to look at the coin as a whole with grading in mind - aside the "automatic" mag increase inside moving the red box provided - so I clicked on an image to see if it offered a full-face pic (which is how I grade, looking at the whole coin rather than highly-magnified detail areas). The act of clicking imposed a permanent red box on the image, and upon moving the cursor inside that box I discovered it a "dead zone" where no detail at all is visible.

 

Successfully created an account because neither the Facebook or Google log in work, and I have both, now when I try too log in with the created acct, nothing happens

 

Ok, I got the confirmation email and activated it, still can't get on

 

Gotta' try it

 

Love it. Not as user friendly from my phone though.

 

I got an internal server error after trying a google sign up.

 

Doesn't work for me. Clicked on Sign Up and nothing happens.

 

Just for the record - since there seem to be a lot of signup problems - keep in mind an effort like this isn't easy to create from scratch, and in many cases there are no effective "templates" to build from. It's not as easy as it might seem to create code that works equally on all versions of all browsers under all conditions. Sometimes you have to throw it out there and see what breaks, in order to know what needs to be fixed.

So I'm cautioning patience. Just because stuff doesn't always work doesn't mean the creators are incompetent.