1 Tola Gold...no Info, Can't Read It

The tola is a unit of weight of Indian origin, also used occasionally in the Persian Gulf states and East Africa. This "coin" is a privately made bullion piece; presumably "Juma Ibrahim" was the person responsible for making it.

The Arabic/Persian writing on the back is in the form of a toughra, the ornate signature used by the sultans of the Ottoman Empire and elsewhere to decorate their official coins. Below this "toughra" is a word which appears to read "kray" or something similar (like maybe "keray").

It probably wouldn't have any value above bullion, since it's intent is to be a bullion ingot. Even then, it might still need to be tested to make sure Mr. Ibrahim wasn't lying through his teeth about it being .995 fine. Or that some crook wasn't counterfeiting Mr. Ibrahim's tolas using debased gold.

There might well be some attempts somewhere (perhaps in India) to catalogue these "coins", but I'm not aware of anyone that's tried.

A google search for "Juma Ibrahim tola" came up with this page from a 2007 Czech coin auction which has a couple of privately issued tolas for sale, including one of yours (number 559).

The pic on that site is clearer, enabling me to read the word below the toughra: it's "Karachi", a city in Pakistan. The other two private tolas on that page (numbers 558 and 560) are also from gold dealers in Karachi; it must have been (or perhaps still is) a popular thing in that city.

As for value, the auctioneers in the above link gave all three tolas an estimate of 6000 Czech korun (which currently equates to about US$340). Unfortunately, none of them actually sold (the price realized column is blank), so we don't know if those prices were realistic, but at the time the auction was held, 15 December 2007, gold was US$790/ounce, giving the tola a bullion value of US$300 (or about 5100 Czech korun).